Understanding Advanced Caulk Properties and Paintability

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Choosing the Right Caulking for the Job: Caulk Like a Pro!

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What happens here

The presenter discusses advanced properties of high-performance caulk, which include strong adhesive qualities to ensure firm bonding to surfaces. Crucially, the caulk must be flexible or 'elastomeric,' meaning it can stretch and flex with typical expansion and contraction from heat to cold (winter to summer) without cracking or separating from the joint—a common failure of cheaper caulks. 'Tower Tech' caulk is noted for its 50% joint movement capability. Another vital aspect for painted surfaces is paintability, as some caulks contain plasticizers that can migrate into paint, causing unsightly 'shiners' or discoloration. The video strongly recommends using water-based (latex or acrylic) caulk that is explicitly paintable to avoid these issues, contrasting it with 100% silicone caulk which cannot be painted.

Goal: The video emphasizes critical caulk properties like adhesion, flexibility, and paintability, warning against issues like cracking, separation, and 'shiners' from low-quality products.

What they say

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if you haven't how to get a super laser straight line using frog tape and caulking you know this is what i'm using when it comes to caulking the exterior of a building when i'm doing um residential repaints or commercial repaints i'm using just a white um white caulking from tower now one of the cool things about tower the um the sealant the urethane the acrylic urethane elastomeric sealant is they have a bunch of different colors i think there's like 20 22 different colors if you need um colored caulking so this is a high performance class 25 caulking it does have 50 um joint movement so that means it will expand or contract 50 percent and that's that's quite a bit um this is another caulking this one of the things that i noticed from some of the talking you know over the years is um the plasticizers and caulking will cause what we call shiners in the paint and you'll start to see um a shiner where the caulking is where you've painted over this on the tower caulking right here the technology is it that's in it you will not have any shiners and that could be pretty important um if you're using an expensive paint that does show shiners so the tower caulking is this is a water-based product so it cleans up with water very simple and easy to use and it is paintable i'm always using a paintable caulking there would be rare rare situations that i use 100 silicone but 100 silicone you cannot paint i was just out working on a commercial building where they painted all the seams in the commercial building or they actually caulked all the seams in the metal sided building and they use 100 silicone caulking and you cannot paint over that it's all going to have to be removed so i use water-based latex or acrylic type caulking that cleans up with water and it's got to be paintable and that's what these two products are so there you have it tower caulking this is a gun grade one component high performance caulking that's absolutely amazing i use it for everything i'm doing inside and

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